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首页> 外文期刊>Advanced Powder Technology: The internation Journal of the Society of Powder Technology, Japan >Effect of process parameters on electrochemical properties of mechanically prepared composite powders for solid oxide fuel cells
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Effect of process parameters on electrochemical properties of mechanically prepared composite powders for solid oxide fuel cells

机译：工艺参数对机械制备固体氧化物燃料电池复合粉末电化学性能的影响

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摘要

The effect of parameters for composite powder preparation on the electrochemical performance of cathodes using mechanically prepared LSM/ScSZ cathode material for solid oxide fuel cells was evaluated. It revealed that the input process energy, which is defined as a time integration of required power for rotor blade driving, consistently described changes in the BET surface area and particle size distribution for composite powder material. Depending on the composite powder samples, however, bulk and interfacial resistances for a half-cell test sample varied in a more complex manner when the input process energy was changed. The present results indicated the importance of process parameters such as the input energy besides the absolute values and ratio of particle size for starting powders and the LSM/ScSZ composition ratio. It can be expected that the electrochemical performance may be further improved with precise matching and controlling of these parameters.
机译：使用机械制备的用于固体氧化物燃料电池的LSM / ScSZ正极材料，评估了复合粉末制备参数对正极电化学性能的影响。结果表明，输入过程能量（定义为转子叶片驱动所需功率的时间积分）一致地描述了复合粉末材料的BET表面积和粒度分布的变化。但是，取决于复合粉末样品，当改变输入过程的能量时，半电池测试样品的体积电阻和界面电阻会以更复杂的方式变化。目前的结果表明了工艺参数的重要性，例如输入能量，起始粉末的绝对值和粒径比以及LSM / ScSZ组成比。可以预期，通过精确匹配和控制这些参数，可以进一步提高电化学性能。

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